Eleven people were arrested Wednesday and stolen property was recovered during a multi-agency raid of a warehouse in Oakland's Fruitvale neighborhood, authorities said.

Investigators converged on the property on the 800 block of 36th Avenue near Interstate 880 about 10:45 a.m. and detained 23 people, said California Highway Patrol Officer Daniel Hill.

Of those detained, seven people were arrested for outstanding felony warrants, and four others were arrested on suspicion of possessing weapons or stolen property, Hill said.

The investigation began in December and included members of the Alameda County Regional Auto Theft Task Force, the CHP, Oakland police, sheriff's deputies, probation officers and agents with the U.S. Department of Homeland Security and the Bureau of Alcohol, Tobacco, Firearms and Explosives.

Authorities seized seven firearms, two trailers, two vehicle engines, pieces of construction equipment and a large generator, all of which had been reported stolen from various locations throughout the Bay Area, Hill said.